In my opinion, S.W.A.T. doesn't target any one particular group of readers other than firearms enthusiasts in general. Certain articles will be more of interest to one group than another, but on the next page you'll find one of interest to a different group.
It certainly has the best qualified "been there done that" group of writers you'll find in any publication of its kind.
And emphatically, NO, I am not paid or even prompted or encouraged to say this.
Your best bet is to take a look at the website and see for yourself what type of articles the magazine includes. The link is at the bottom of every page here.